摘要
为明确湖北省主要农作物秸秆露天燃烧碳排放强度,根据2009-2017年湖北省的主要农作物产量、草谷比,估算了主要农作物的秸秆产量,结合秸秆露天焚烧比例计算了湖北省2009-2017年主要农作物秸秆露天焚烧量,进一步依据相关排放因子得出CO和CO2的排放量及碳排放总量。结果表明,湖北省农作物年平均秸秆产量达到32.65×10^6t;农作物秸秆露天焚烧量平均为7.01×10^6t,约占作物秸秆总量的21.47%,其中水稻秸秆露天焚烧量占到农作物秸秆露天焚烧量的49.37%;农作物秸秆露天焚烧排放的CO和CO2总量平均每年分别为0.72×10^6t和9.74×10^6t;排放的总碳量平均每年为2.96×10^6t,其中水稻、小麦、玉米和油菜秸秆露天焚烧释放的总碳量分别为1.47×10^6、0.50×10^6、0.52×10^6和0.48×10^6t。
In order to determine the carbon emission intensity from crop residue by open burning in field in Hubei province,based on date of crop yield from 2009 to 2017 in Hubei province,the major crop residues output were calculated according to the ratio of residue/grain.Combined with the proportion of straw open burning,the amount of straw open burning of main crops in Hubei province from 2009 to 2017 was calculated,and the total amount of CO and CO2 emissions and carbon emissions were further obtained according to relevant emission factors.The results showed that annually production of crop straw in Hubei province was about 32.65×10^6 t/a;The amount of openly burned straw in the field was about 7.01×10^6 t/a,which accounted 21.47% of the total production of crop straw,among them,the open burning amount of rice straw accounts for 49.37%of the open buring amount of crop straw.The total amount of CO and CO2 emitted by the open burning of crop straw was 0.72×10^6 t/a and 9.74×10^6 t/a,respectively;The total carbon emission was 2.96×10^6 t/a on average,and the total carbon emission from the open burning of rice,wheat,corn and rape straw was 1.47×10^6 t/a,0.50×10^6 t/a,0.52×10^6 t/a,0.48×10^6 t/a,respectively.
作者
龚世飞
郭元平
叶青松
兰玉梅
王巍
肖能武
GONG Shi-fei;GUO Yuan-ping;YE Qing-song;LAN Yu-mei;WANG Wei;XIAO Neng-wu(Danjiangkou Reservoir of Shiyan Ecological Agriculture Institute/Shiyan Academy of Agricultural Sciences,Shiyan 442000,Hubei,China)
出处
《湖北农业科学》
2020年第6期60-63,共4页
Hubei Agricultural Sciences
基金
中国农业科学院科技创新工程协同创新任务(CAAS-XTCX2016015)
湖北省技术创新重大专项(2018A BA 097)。
关键词
秸秆
农作物
露天焚烧
碳排放
straw
crops
open burning
carbon emission
